Homoleptic complex from the following complexes is:

Homoleptic complexes compounds are those coordination compounds in which all the ligand which are connected with central atom are same. In the complex Potassium trioxalatoaluminate (III) only one type ligand i.e., oxalate is present. In the complex Triamminetriaquachromium (III) chloride two ligands ammonia and water are present. In the complex Diamminechloridonitrito - N-platinum (II) three ligands ammonia, chloride and nitrite are involved. In the complex Pentaamminecarbonatocobalt (III) chloride two ligands ammonia and carbonate are involved.